Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-02

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-03

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-04

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-05

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-06

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-07

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-08

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-09

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-10

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-11

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.

Stock Photo: 50M1420-12

Yangtze River Dolphin, or Baiji (Lipotes vexillifer). Also known as Beiji and Chinese River Dolphin. Critically endangered and rare - declared extinct late 2007. This individual male, Qi-Qi, was photographed in 1988 at Institute of Hydrobiology, China.